"So I had planned to go on vacation with my girlfriends and I almost canceled it because I hurt my ankle....but then I decided that spending time with my friends and being injured was better than being alone and injured," Vonn, 30 wrote beside a snapshot of herself toughing through a TRX session, sporting a strappy purple two-piece and her ankle brace. "But just because I'm on vacation doesn't mean I'm not working hard."

From upper body to a quick core blast, the alpine racer then shared a picture of herself working her obliques with the help of a gal pal. "Friends don't let friends miss ab day," she captioned the photo.

The athlete has been vocal about working toward the 2018 Olympics in PyeongChang, South Korea. In May, she was named the first International Games Ambassador for the Winter Olympics to help promote her sport. (She has had two right-knee ACL surgeries in the last two years and did not compete in the 2014 games in Sochi, Russia.)